It's often argued that theists start with a belief in a literal deity (for whatever reasons) then try to find evidence to support it. However I think many people do start with what they consider to be evidence first, even if it's not generally accepted as such.
Why do you believe? Does belief necessarily require evidence? If so, what qualifies?
Belief, in my opinion. is a creation each individual makes to have in their lives order out of chaos. If you are into mathematics, numbers, negatives, fractions, null sets, infinite series, are all concepts designed to make possible understandable properties of the world around us. In basic mathematics if you add 2 to another 2 you get 4. However, today it is not that simple, many could manipulate the properties and definitions of any of the existing integer and instead incorporate complex proofs where the result could be equated to any variable you desire. Therefore you get equations like this, 2+2 = N. This is impressive for sure and almost magical to see these manipulations work out and it would be ignorant to say based on detailed proofs, the mathematician is wrong simply because in kindergarten a teacher taught you 2+2 will always equal 4. Much of our advances in science and physics come from our ability to manipulating basic concepts like numbers and patterns. So often in order to improve as a society we must be able to accept different versions of already known beliefs
Beliefs is like the variable N in my example. It has infinite direction, yet caused by understandable events in the world around each individual. If I were to survey the world population to know how many beliefs are based on a result of parental observance and influence. I might be able to see reasonable patterns that sourced the belief, I could assume that the next generation will likely follow the same or similar pattern. However, this is not always the case, and from what I gather today is becoming less of the case generation by generation as we see a decline of familiar observance and religious unity within a particular family unit.
Perhaps its the complexity and freedom that is deterring new generations to a common denominator belief, or perhaps its the boundless access to information that is making belief difficult to grasp or hold onto. Whatever the case, it appears evidence will never be concrete enough to formulate belief. The emergence of very unique beliefs and radical changes to existing beliefs is a sign for me that we are loosing ground on order and changing it back into chaos. It appears because of the chaos that people may not know what to believe in and so they pass it to others to do it for them. Belief was designed to be individually structured, understandable, and simplified, yet many have been sweep away by the complexity of information that I feel have forfeited much of their beliefs to something that makes the most noise. That looks the most smart or sophisticated. That gives the most money or power.
God is a constant. Out of the chaos that the world is turning politically and socially in search of belief, God has allowed theists the luxury of using eternal formulas such as love, compassion, charity, and forgiveness to nullify or simplify the complexities of the world around them. Belief in God gives theist something to hold onto like a kite in a stormy sky. God also is the common denominator of theist, therefore we are able to relate to experiences that have changed a bad day into a good one.
God resolves paradoxes. Time and Space can create many issues that are theorized but not well understood. The good thing about it is until we do understand time and space, we have God as the placeholder constant to be able to continue the formula. Once we solve Time and Space, God can be the placeholder for other amazing scientific advances. I believe there is no end to progression or science because God exists.
Belief in God just makes life easier to cope with. It makes complex problems not so hard to solve. We shouldn't get ignorant because of God, we should get inspired because of Him.